鑽孔精度約H7, 內冷需聯繫客服! HRC>50度 高硬材料高效鑽孔首選!
*內冷款!
3.0-4.0, 4.1-5.0, 5.1-6.0, 6.1-7.0, 7.1-8.0, 8.1-9.0, 9.1-10.0, 10.1-11.0, 11.1-12.0, 12.1-14.0, 14.1-16.0, 16.1-18.0, 18.1-20.0
一般(HRC<50), 高硬(HRC>50
內冷, 外冷
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